﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo3_1_5
{
    internal class Program
    {
        static void Main(string[] args)
        {
            var person = new Person()
            {

                Name = "张三",
                Age = 20
            };
            
            Console.WriteLine("hello world");
            Console.ReadLine();
        }
       

    }
    public class Person
    {
        public string Name { get; set; }

        public int Age { get; set; }
    }
}
